R: Incidence Matrix of Levels within a Factor

at.level {MCMCglmm} | R Documentation

## Incidence Matrix of Levels within a Factor

### Description

Incidence matrix of levels within a factor

### Usage

    at.level(x, level)

### Arguments

`x` | factor
`level` | factor level

### Value

incidence matrix for level in x

### Author(s)

Jarrod Hadfield j.hadfield@ed.ac.uk

### See Also

`at.set`

### Examples

    fac<-gl(3,10,30, labels=letters[1:3])
    x<-rnorm(30)
    model.matrix(~at.level(fac,"b"):x)

[Package MCMCglmm version 2.30 Index]